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WATER-SOLUBLE TWO-COMPONENT COATING COMPOSITIONS BASED ON WITH A FOREIGN MATTER EMULSIFIABLE ALKYD RESINS, PROCESS OF THEIR PREPARATION AND USE
WATER-SOLUBLE TWO-COMPONENT COATING COMPOSITIONS BASED ON WITH A FOREIGN MATTER EMULSIFIABLE ALKYD RESINS, PROCESS OF THEIR PREPARATION AND USE
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机译:基于国外可乳化醇酸树脂的水溶性两组分涂料组合物的制备和使用工艺
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摘要
Water-dilutable 2-component coating materials (I), contg. (a) an isocyanate component with a viscosity of 50-10,000 mPa.s at 23 degrees C, consisting of polyfunctional isocyanate(s), and (b) an alkyd resin emulsion, contg. (b1) 60-98 wt% alkyd resin(s) (based on solids), (b2) 2-40 wt% OH-functional emulsifier(s) (based on solids), (b3) opt. up to 15 wt% organic solvent (based on emulsion), and (b4) water. Also claimed is: (i) a process for the prodn. of (I) by transferring an alkyd resin into the aq. phase with the aid of OH-functional emulsifiers and then emulsifying polyisocyanate in this emulsion; (ii) a process for the prodn. of coatings using (I); (iii) a process for the prodn. of multilayer coatings, in which at least one of the coating materials used contains (I).
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